关于引擎正反转问题，HUDY磨合台

Sorry that my computer cannot type chinese. I just want you to check that if the propeller is turen in CCW, a normal right hand nut will only become too tight. The force acting from the propeller to the nut is CCW so that it will tight the nut instead of make it loose. This is common knowledge of engineer. The problem is when you start the engine, the propeller will become loose if it is not tight enough. The situation is same as the  fly wheel.

Fly wheel will not loose when operation that means the propeller will also not loose in operation. If your are an engineer, you should know. Imagine the propeller rotate about the shaft, the nut will move with the propeller and the direction is tighten the nut instead of loose it. If the shaft is left-hand screw, it will loose the nut.

鱼哥，你真是偶像，磨合台看起来太拉风了！！！！！